kpl: Kpl (Two, and three-dimensional graphical presentation)
kpl: 
kpl: Kpl is a program for two- and three-dimensional graphical presentation
kpl: of data sets and functions. Multidimensional  nonlinear parameter fits
kpl: of  functions  to  data  sets  can  be  performed  using the Levenberg
kpl: -Marquardt algorithm. Also general  linear least square parameter fits
kpl: are possible. A DCOP  interface can  be  used  to control Kpl by other
kpl: applications and scripts.
kpl:        http://frsl06.physik.uni-freiburg.de/privat/stille/kpl/
kpl:                          WWW.SLACKY.IT 
kpl: PackaGer Gohanz